Vehicle overheated. It was a blown heater control valve.
Right before pulling off, the engine shuddered, and the idle jumped to a
very high idle.
Replaced the HCV, no cooling issues.
Now it cranks up normally, and about 10 sec later revs up to a very high
idle. No mechanical obstruction with the throttle.
Stalls when you try to move it. At idle very high rpm.
Fuel system type? EFI, CFI, Carb.. WHAT!????
Start by disconnecting all vacuum access, lines and plug the port. If it
has EFI, leave Fuel PRess Reg connected.
Check PCV valve
If still goes high idle, disc wiring connector for Idle Speed control.
On overheat, though might point to bad intake gasket, can be
Yeh, I'm a Krusty old Geezer, putting up with my 'smartass' is the price
you pay..DEAL with it!
Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.